\begin{tikzpicture}

\definecolor{darkgray176}{RGB}{176,176,176}

\begin{axis}[
colorbar,
colorbar style={ylabel={}},
colormap/blackwhite,
point meta max=100,
point meta min=-100,
tick align=outside,
tick pos=left,
x grid style={darkgray176},
xmin=-10, xmax=10,
xtick style={color=black},
y grid style={darkgray176},
ymin=-10, ymax=10,
ytick style={color=black}
]
\addplot graphics [includegraphics cmd=\pgfimage,xmin=-10, xmax=10, ymin=-10, ymax=10] {tmp-000.png};
\end{axis}

\end{tikzpicture}
